Transcription of High-Speed Tool Steels - ASM International
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High-Speed Tool Steels - ASM International
Tool Steels Alan M. Bayer and Bruce A. Becherer, Teledyne Vasco High-Speed TOOL Steels and their requirements are defined by The American Society for Testing and Materials in Speci- fication A600-79 as follows: High-Speed tool Steels are so named primarily because of their ability to machine materials at high cutting speeds. They are complex iron-base alloys of carbon, chromium, vanadium, mo- lybdenum, or tungsten, or combinations thereof, and in some cases substantial amounts of cobalt. The carbon and alloy contents are balanced at levels to give high attainable hardening response, high wear resistance, high resistance to the softening effect of heat, and good toughness for effec- tive use in industrial cutting operations. Commercial practice has developed two groups of cutting materials: The recognized standard High-Speed tool steel, which serves almost all applica- tions under mild to severe metal-cutting conditions A smaller group of intermediate Steels , which are satisfactory for limited applica- tions under mild to moderate metal-cut- ting conditions The minimum requirements that must be met to be classed as a st
There are presently more than 40 individ- ual classifications of high-speed tool steels, according to the American Iron and Steel Institute (AISI). When these are compound- ... T11315 1.50 0.33 4.00 5.00 6.50 3.50 5.00 M30 ..... T11330 0.80 0.33 4.00 1.25 2.00 8.00 5.00 M33 ..... T11333 0.89 0.33 3.75 1.18 1.70 9.50 8.25 ...
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